Cov txheej txheem:

Kuv yuav siv GSON li cas?
Kuv yuav siv GSON li cas?

Video: Kuv yuav siv GSON li cas?

Video: Kuv yuav siv GSON li cas?
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Cov kauj ruam kom nco ntsoov

  1. Kauj ruam 1 - Tsim Gson khoom siv GsonBuilder. Tsim ib Gson khoom. Nws yog ib qho khoom siv rov siv tau.
  2. Kauj ruam 2 - Deserialize JSON rau Object. Siv los ntawm Json() txoj hauv kev kom tau Lub Object los ntawm JSON.
  3. Kauj ruam 3 - Serialize Object rau JSON. Siv toJson() txoj kev kom tau txais JSON txoj hlua sawv cev ntawm ib qho khoom.

Ib yam li ib tug yuav nug, Kuv yuav siv GSON los ntawm Json li cas?

Hauv qhov kev qhia no peb yuav mus dhau cov kauj ruam hauv qab no:

  1. Nyeem cov ntsiab lus ntawm cov ntaub ntawv hauv Java.
  2. Peb yuav siv regex phua ua haujlwm los hla ib qho chaw dawb huv ntawm cov lus.
  3. Tsim JSONObject tawm ntawm txhua kab.
  4. Ntxiv txhua JSONObject rau JSONArray.
  5. Sau JSONArray.
  6. Tam sim no siv Gson's los ntawm Json() txoj kev peb yuav deserialize JSONArray rau ArrayList.

Tsis tas li ntawd, GSON sawv rau dab tsi? Gson (tseem hu ua Google Gson ) yog ib lub tsev qiv ntawv Java qhib rau serialize thiab deserialize Java khoom rau (thiab los ntawm) JSON.

Tib neeg kuj nug, qhov txawv ntawm GSON thiab JSON yog dab tsi?

GSON yog java API los ntawm Google uas hloov java khoom rau lawv JSON sawv cev thiab vice-versa. Cov lus qhia rau kev teeb tsa thiab cov qauv siv ntawm no. Google Gson yog ib qho yooj yim Java-raws li tsev qiv ntawv los serialize Java khoom rau JSON thiab vice versa. Standardized - Gson yog ib lub tsev qiv ntawv txheem uas yog tswj los ntawm Google.

GSON serialize li cas?

Serialization nyob rau hauv cov ntsiab lus ntawm Gson txhais tau tias hloov ib yam khoom Java rau nws tus sawv cev JSON. Nyob rau hauv thiaj li yuav ua tus serialization , peb xav tau a Gson khoom, uas tswj kev hloov dua siab tshiab. Tom ntej no, peb yuav tsum hu rau lub luag haujlwm rau Json() thiab hla tus neeg ua haujlwm khoom.

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